A movie I saw on TV in the mid to late 70’s had a woman who was kidnapped and held hostage in a van with a bomb on it with a timer set to explode. I kind of remember the van being parked in a parking lot outside a baseball stadium (maybe?). Anyway, I think the guys that were holding her hostage changed their mind and were trying to rush back to get her out of the van before it exploded but they were too late and I think it exploded anyway. Sorry that’s all I remember but it’s driving me crazy trying to figure out what movie it was?! Thanks for any help!